Chin surgery is one of the most under-discussed components of Korean facial-bone work, even though it is one of the highest-impact for facial proportion. Two distinct procedures are available: sliding genioplasty (cutting and repositioning the patient\'s own chin bone) and chin implant (adding a silicone or porous implant over the bone). They are different operations with different long-term implications.
The two procedures defined
- Sliding (osseous, bony) genioplasty — an intraoral incision is made, the chin bone is cut horizontally, and the lower segment is repositioned forward, backward, vertically, or rotated. Fixed with titanium plates and screws.
- Chin implant — a small intraoral incision; a pre-shaped silicone or porous polyethylene implant is placed over the chin bone to add forward projection.
When sliding genioplasty is the right answer
- Significant chin recession (microgenia) requiring more than 4–5 mm of advancement.
- Long chin requiring vertical reduction (combined with T-osteotomy).
- Asymmetric chin requiring rotation or lateral repositioning.
- Patients who prefer no foreign-body material.
- Combined facial-bone surgery (V-line, two-jaw) — the chin component is naturally part of the planned bone work.
When a chin implant makes sense
- Mild to moderate chin recession (2–6 mm advancement equivalent).
- Patients seeking a quick, lower-cost procedure with shorter recovery.
- Patients without functional bite issues.
- As a trial — implants can be removed if the patient changes their mind.
The T-osteotomy variant for long chins
For patients whose concern is chin length or width rather than projection, T-osteotomy is the genioplasty subtype:
- The chin bone is cut in a T pattern.
- A vertical wedge is removed to narrow.
- A horizontal wedge can be removed to shorten.
- Often combined with mandibular angle reduction in V-line surgery.
This is the chin component of full V-line surgery; standalone T-osteotomy genioplasty is also available for patients whose lower face is otherwise proportional.
Why Korean surgeons increasingly prefer sliding genioplasty
Several reasons drive the modern preference:
- Permanence: bone heals in its new position; no risk of implant displacement, exposure, or infection over decades.
- Greater advancement range: bone repositioning can achieve more change than implants comfortably allow.
- Vertical and rotational control: implants only add projection; bone work changes height and rotation.
- Lower long-term complication rate: no foreign body to fail.
- Better natural feel: the chin moves and feels like the patient\'s own bone — because it is.
Risks to understand
Sliding genioplasty
- Mental nerve injury — temporary lower-lip numbness in many cases; rarely persistent.
- Asymmetry if bone repositioning is imprecise.
- Bleeding requiring careful surgical control.
- Hardware-related issues (plate or screw exposure) — rare with modern fixation.
Chin implant
- Implant displacement or migration over years.
- Infection — rare but serious; usually requires implant removal.
- Bone resorption underneath the implant over decades.
- Implant exposure or extrusion in thin-skinned patients.
- Capsular contracture (less common than in breast or rhinoplasty implants but possible).
Recovery comparison
| Aspect | Sliding genioplasty | Chin implant |
|---|---|---|
| Operative time | 1.5–3 hours | 30–60 minutes |
| Anesthesia | General | Local + sedation or general |
| Visible swelling | 2–3 weeks | 7–10 days |
| Soft-food diet | 7–14 days | 3–7 days |
| Earliest flight | 10–14 days | 5–7 days |
| Final result | 3–6 months | 2–3 months |
Combination cases
Korean genioplasty is rarely standalone. Common combinations:
- Genioplasty + V-line surgery — the chin is the centerpiece of V-line; combined planning is essential.
- Genioplasty + zygoma reduction — full facial bone harmony.
- Genioplasty + rhinoplasty — projecting chin and refined nose balance the profile.
- Genioplasty + facelift — for older patients seeking comprehensive lower-face correction.
What to ask in your consultation
- Sliding genioplasty or implant — and why?
- How many millimeters of change in which direction?
- What does my profile and frontal view look like in the simulation?
- What is your mental nerve recovery profile?
- For implants: what material, what brand, and what is your removal/exchange rate?
- For sliding: 3D CT planning protocol?
Cost ranges in Gangnam (2026, USD)
- Chin implant (silicone): $1,800–$3,500.
- Chin implant (porous polyethylene): $2,500–$4,500.
- Sliding genioplasty (advancement only): $3,500–$6,500.
- T-osteotomy genioplasty (reduction): $4,000–$7,500.
- Combined with V-line: typically $4,000–$8,000 above V-line base.
The non-surgical alternative
For mild chin recession or for patients trialing the look:
- HA filler placed at the chin point can simulate 2–4 mm of advancement.
- Reversible. Cost $400–$900 per session, repeating every 12–18 months.
- Useful for "before committing" trial — many patients use filler first, then convert to surgery if they want permanence.
Genioplasty is one of the highest-impact procedures available for facial proportion. For most patients with significant chin concerns in 2026, sliding genioplasty has become the default — and the right choice — over implants. Ask the right questions, and the surgery rewards the planning.